What is Thyroid Function (TSH, T3, T4) test?
A thyroid function test is a blood test that measures the levels of thyroid hormones (T3 and T4) and thyroid-stimulating hormone (TSH)
in your blood. The thyroid gland, located in your neck, produces thyroid hormones, which regulate your metabolism, growth, and development.
Why Thyroid Function (TSH, T3, T4) test is required?
A thyroid function test is often used to:
- Diagnose hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid).
- Monitor the effectiveness of thyroid hormone replacement therapy.
- Assess the risk of thyroid-related health problems.
- Evaluate the cause of symptoms such as fatigue, weight gain or loss, or irregular heart rate.
Which are the method of Thyroid Function (TSH, T3, T4) test?
The most common method for measuring thyroid hormone levels is a blood test. A blood sample is drawn and analyzed in a laboratory.
Who should go for Thyroid Function (TSH, T3, T4) test?
Individuals who may benefit from a thyroid function test include:
- People with symptoms of hypothyroidism or hyperthyroidism, such as fatigue, weight gain or loss, cold intolerance, or irregular heart rate.
- Women who have had a history of thyroid problems during pregnancy.
- Individuals with certain autoimmune diseases, such as type 1 diabetes or rheumatoid arthritis.
- People taking medications that can affect thyroid function.
What are the results of Thyroid Function (TSH, T3, T4) test?
The results of a thyroid function test typically include the following measurements:
- Thyroid-stimulating hormone (TSH): A hormone produced by the pituitary gland that stimulates the thyroid gland to produce thyroid hormones.
- T3 (triiodothyronine): A thyroid hormone that is more active than T4.
- T4 (thyroxine): A thyroid hormone that is produced in larger quantities than T3.
Abnormal levels of TSH, T3, or T4 may indicate a thyroid disorder. Your healthcare provider will interpret your results and discuss appropriate next steps.
What are the components of Thyroid Function (TSH, T3, T4) test?
A thyroid function test typically involves the following:
- Blood draw
- Laboratory analysis of the blood sample
